JPH0718409Y2 - Bar stable support equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a bar stable support equipment for a piercer, a reeler, etc. of a seamless steel pipe manufacturing facility, and particularly a No. 1 bar stable support located at the forefront of the exit table. It concerns the improvement of the device.

[Conventional technology]

Conventionally, the bar stable support equipment in the piercer has been designed so as to stabilize the mandrel bar during processing and to guide and support the mandrel bar so that the shell formed by perforation of the material can be delivered while rotating. By fixing with bolts on the fixed base (common) of the exit table provided on the side, a plurality of bar stable supporting devices are arranged at intervals along the material pass line. It was necessary to secure a space between the No. 1 bar stable support device located at the forefront of the above, in order to facilitate the pulling-out work when replacing the lower material guide shoe in the processing roll device.

[Problems to be solved by the invention] By the way, from the viewpoint of buckling prevention of the mandrel bar and stable support of the shell, it is ideal that the position where the shell is clamped is provided as close to the processing roll device as possible, and at least the No. 1 bar. The guide supporting device is preferably provided near the processing roll device, but in practice, as described above,
Space between the No. 1 bar guide support device and the processing roll device for the space for replacing the lower material guide shoe (something large because it is necessary to pull out in the material path direction when replacing the lower material guide shoe) Therefore, improvement has been desired from the viewpoint of preventing buckling of the mandrel bar and stable support of the shell.

[Purpose of device]

The present invention has been made to solve the above-mentioned problems, and while installing the No. 1 bar guide support device located at the forefront of the exit table near the processing roll device, it is sufficient when replacing the lower material guide shoe. The purpose is to be able to secure a replacement space.

[Means for Solving the Problems]

As shown in the figure, the present invention has a plurality of bar stable supporting devices 1 on an exit table 3 provided on the exit side of a processing roll device 2.
In the bar stable supporting equipment in which the parts are arranged at intervals along the material pass line L, the No. 1 bar guide supporting device 1 located at the forefront of the exit table 3 guides on the fixed base 5 of the exit table 3. It is installed on a slide base 8 which can move in a direction orthogonal to the material pass line L along the rail 4A. The slide base 8 or the fixed base 5 is mounted on the fixed base 5 at the material pass line position. It is characterized in that clampable devices 12 to 15 that can be fixed are provided, and the object is achieved by such a configuration.

[Action]

Since the No. 1 bar stable support device 1 is installed on the slide base 8 and arranged near the processing roll device 2, the support of the shell by each bar stable support device 1 is stable during the processing operation.

Further, when the slide base 8 is pulled out from the lower position of the material pass line L to the lateral position along the guide rail 4A (sideward retreat) by releasing the fixing by the clamp device, the working roll device 2 and the No. 2 bar are stably supported. Since the space between the apparatus 1 and the apparatus 1 is large, the lower material guide shoe of the processing roll apparatus 2 can be pulled out in the material path direction to easily perform the replacement work.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a bar stable supporting device, which is arranged at intervals along the material pass line L on the exit table 3 installed on the exit side of the processing roll device 2 (only the No. 1 bar stable supporting device is shown. ).

4A and 4B are guide rails, on the fixed base 5 at the forefront of the exit table 3 so as to run along the direction orthogonal to the material pass line L at a position below the material pass line L and a lateral position lower than the material pass line L, respectively. It is laid near the device 2.

Sliding support part 6 that protrudes to both sides is provided on the upper part of the guide rail 4A.
Are provided, and brackets 7 are projectingly provided on the side surfaces of each end.

Reference numeral 8 is a slide base formed in a lip groove-shaped cross section that opens downward, and a support wheel 10 is rotatably attached to a lower part of one end side thereof via a bracket 9.

The slide base 8 is supported by being engaged with the guide rails 4A by the engaging portions 8a provided on both sides, and is also supported on the guide rails 4B by the support wheels 10 provided at one end. The advancing cylinder 11 enables movement on the fixed base 5 along the guide rails 4A and 4B in the direction orthogonal to the material pass line L.

Reference numeral 12 denotes two pairs of clamp claws which face each other with the guide rail 4A interposed therebetween, and are rotatably attached by a pin 13 to a bracket 7 provided on the fixed base 5 with the claw portions 12a facing the upper surface of the slide base 8. There is. The lower end of the clamp claw 12 is formed to extend below the pivot point (pin 13) and is connected to the tip of the rod of a clamp cylinder 14 attached to the fixed base 5 via a pin 15. Although an example in which the clamp device capable of fixing the slide base 8 to the fixed base 5 is provided on the fixed base 5 in this way has been described, it goes without saying that it may be provided on the slide base 8.

The No. 1 bar stable supporting device 1 is installed on the slide base 8 and is arranged on the material palline L by the forward and backward moving cylinder 11.

The No. 2 and No. 3 bar stable supporting devices are fixedly mounted on the fixed base of the exit table 3 and arranged on the material pass line L.

No. 1, No. 2 and No. 3 bar stabilizers all have at least 3 rollers equally distributed around the material pass line L.
16 ₁ , 16 ₂ , 16 ₃ and the link mechanism 17 capable of approaching or separating from the material pass line L while keeping the rollers 16 ₁ , 16 ₂ and 16 ₃ at the same distance from the material pass line L at all times.
And drive devices 18 and 19 (hydraulic cylinders in the embodiment) capable of operating the link mechanism 17.

Reference numeral 20 is a cable bear for connecting power lines such as piping, one end of which is fixedly attached to a fixed base 5 provided with a guide rail 4B, and the other end of which is fixedly attached to a slide base 6. It is possible to supply power to the drive unit used for the No. 1 bar stable support device 1.

In the above configuration, when the material is moved to the mandrel bar side while being rotatably supported by the processing roll device 2, the material is perforated, thereby forming the shell. This shell is clamped and supported by the rollers 16 ₁ , 16 ₂ and 16 ₃ of the No. 1, No. 2 and No. 3 bar stabilizing support device on the exit side of the processing roll device 2, respectively, but at the front of the fixed base 5. Since the No. 1 bar stable support device 1 located at No. 1, No. 2, since it is installed on the slide base 8 and arranged near the processing roll device 2,
The support of the shell by the No. 3 bar stable support device is stable.

In addition, when changing the material size, it is necessary to pull out and replace the lower material guide shoe of the processing roll device 2, but in this case, the clamp claw 12 is rotated by the rod retraction operation of the clamp cylinder 14 to slide the claw portion 12a. Base 8
Cylinder after lifting from above (fixed release)
The slide base 8 is pulled out along the guide rails 4A and 4B from 11 to a side position from the lower side of the material pass line L by 11 (side retract). As a result, No.1 bar stable support device 1
Is drawn in from the vicinity of the processing roll device 2 to the side, and a large gap is provided between the processing roll device 2 and the No. 2 bar stabilizing support device. Therefore, the replacement work can be easily performed by pulling out the lower material guide shoe of the processing roll device 2 in the material pass direction.

Contrary to the above, the slide base 8 is returned along the guide rails 4A and 4B from the lateral position of the material pass line L to the lower position near the processing roll device 2 by the rod retraction operation of the forward / rearward movement cylinder 11, and the No. 1 bar. After centering and arranging the stable supporting device 1 on the material pass line L, the claw portion 12a of the clamp claw 12 is pressed against the upper surface of the slide base 8 by the rod projecting operation of the clamp cylinder 14, and the slide base 8 is claw portion of the clamp claw 12. It is clamped between 12a and the guide rail 4A and fixed to the fixed base 5. As a result, the mandrel bar during processing can be stably supported, and the shell formed by perforating the material can be stably supported so as to be delivered while rotating, so that the processing operation can be performed.

Further, the slide base 8 and the fixed base 5 of the exit table 3 are connected via a cable bear 20. By this cable bear 20, regardless of whether the No. 1 bar stabilizing support device 1 moves forward or backward, the drive device 18 , 19 can be constantly supplied with power, so that the work of removing the piping etc. is not required when moving the No. 1 bar stable support device 1.

[Effect of device]

As described above, according to the present invention, since the No. 1 bar stabilizing support device located at the forefront of the exit table is arranged near the processing roll device, the shell support is stable, and the buckling of the mandrel bar is reliably prevented. Therefore, the processing quality can be improved.

Also, when replacing the lower material guide shoe, the No. 1 bar stable support device can be retracted laterally from near the processing roll device to leave a large gap between the processing roll device and the No. 2 bar stable support device. Therefore, the replacement work by pulling out the lower material guide shoe of the processing roll device in the material path direction becomes easy.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of this invention, FIG. 2 and FIG.
The drawing is a front sectional view taken along the lines X to Y and the line Y of FIG. 1, FIG. 4 is a right side view of FIG. 2, and FIG. 5 is a front sectional view taken along the line Z to FIG. 1 ... Bar stable support device, 2 ... Processing roll device, 3 ...
… Exit table, 4A, 4B …… Guide rail, 5 …… Fixed base, 7 …… Bracket, 8 …… Slide base, 11
...... Forward / reverse cylinder, 12 …… Clamp claw, 12a …… Claw part, 13,15 …… Pin, 14 …… Clamp cylinder, 18,19
...... Drive device, 20 …… Cable bear.

Claims (1)

[Scope of utility model registration request] 1. In a bar stable support facility in which a plurality of bar stable support devices are arranged at intervals along a material path line on an exit table on the exit side of a processing roll device, the bar stable support device is located at the forefront of the exit table. The No. 1 stable support device is installed on a slide base that can move on the fixed base of the exit table along the guide rail in the direction orthogonal to the material pass line.
A stable bar supporting device, which is provided with a clamp device capable of fixing the slide base to the fixed base at the material pass line position.